diff --git a/lib/medical_records/client.rb b/lib/medical_records/client.rb
index 8db45263945..31e65d97dc5 100644
--- a/lib/medical_records/client.rb
+++ b/lib/medical_records/client.rb
@@ -13,6 +13,10 @@ module MedicalRecords
   class Client < Common::Client::Base
     include Common::Client::Concerns::MhvFhirSessionClient
 
+    def use_lighthouse
+      true
+    end
+
     # Default number of records to request per call when searching
     DEFAULT_COUNT = 9999
 
@@ -41,7 +45,7 @@ class Client < Common::Client::Base
     # @return [String] Base path for dependent URLs
     #
     def base_path
-      "#{Settings.mhv.medical_records.host}/fhir/"
+      use_lighthouse ? "https://sandbox-api.va.gov/services/fhir/v0/r4/" : "#{Settings.mhv.medical_records.host}/fhir/"
     end
 
     ##
diff --git a/lib/medical_records/private.pem b/lib/medical_records/private.pem
deleted file mode 100644
index 59bd66ac88c..00000000000
--- a/lib/medical_records/private.pem
+++ /dev/null
@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEA1Ui745cmFt1R8Cl7ghYhc5N+BDIydhpTX+OJ6/mbz4n17gv5
-TMU88m4hM8fwT5hsJQwfwhbmf2kyR0te5F6S2wLGm/2re1eyTlOyUAf7LZcROKeZ
-hMiD2sqNYeGjGUhKadg1j1iq67wKseHchj/0c93B0mL7klyYyonN23CPIvaeSd5a
-BkXyMuSU1kE6rIn56zk3pvprSenpQLWNpI5KsinvFvPyb2yUPVEzpv0OXxG64+6l
-MlFM3vVVRn7JhtRbc2zimyFXZIcgrrsaAWwA6rH1g6BY/eoZFUchTT5qtbLcJEUU
-rvjNAH+LGZagFZToun1/TDIgwFSerfLv9JOJsQIDAQABAoIBAC1wI2cnKlwwpmYt
-0Dw0jsfaojwunYV/skd5aEa3lLQwRg6CyofKdWOIhtZLQC0U4eU6ogFtc4mtVaLO
-sdahN1QlUT6mWkQauMfrGM/oA2EBEBAr1I7vUPfpsxkpQt/+AKxv/WkekLtMAlNH
-NP383g1ZLxOtNr9Frt9nYE3huvzNffV+FXHeJmuO70wCi1VOh38zrZHg5UzK3wXu
-wZEaCqWmwcolmWBWGEYLUp6DEcpAH2+fpw7yI+8QH1GmfoaCfCcHnU4BDk9L60GT
-dQKYOH+MyM55Qaw7FCfmFgsAzf4l/u0+EkQl2DjNrEv90GWTcT9qWljbyc/J2G2O
-Y0B5zAECgYEA7IGGgROVZX7+WF6tX8DNMp76T5RrgViwsdUgiSA1lhjgNAcuqGaL
-VanCieYSoCM0lhJ2qfaBvbBbHdLmmu4WWAQ5lT9NOtxkqSOm740s6rLCiUpvUPgj
-D9D8HeLHqH6My3WuSG32tpH1VnRPtdLfup8RQcaCJQ0HzGdxJL+CEWECgYEA5t01
-SUWllGiy9FrLNCTfkIQvH7Xh14oHPMJsSQ6/+bqrZU7t5IfYLO9jhqA2AQDmBiEZ
-GeEswsGKvAVwNRsNZNdjCqlFYd6/TG1vgKFBfK5uqhnWMdY89oKOTj3Iet939+gI
-vloEBj9+Ma5xVhWa+2AdZvAtbBrKtXaH8I8mSlECgYAnXiQihjz/CRWTZicb4j8F
-5xqpdn4yqK243E4vJTJmSru/TVbB51fYKYrdY3PEPjf5pxcjkYnlJl70Zu/F6E3F
-1uYy5reXTapf0TRveaN5acoiCkbfRn6nmlTtMJule3M6Rtt86PkBSOh6vJ+sF27w
-ZJv9w+pT+ohKyQk3Yb1n4QKBgHWYwnbjYjeZqWZtBUs3aSXtHy/w7uxi49LgWlZQ
-jBuCKaI+NVGOnOAuxKyj2T5jncgLfgS/vZQrECc8Qe7bK9RtHockuDHlS957dCu6
-eGgxVi+RX5kdPwp2cFSMhh2IzUxbRnDn21rvZrGZ4SNvd/WJ/RAdUZXag90xVoeD
-84YxAoGBAOjg3mNfacQpwVQWeWk6/e519jvuRlq7BUhIPAvIO0op7UAVHakpNdqA
-B/s8CW3EAHntN5ca04+JzOXA3ODipXUe9QLZ91TKnQoymsVpZlSfDNEcGCmPHwuX
-DKiXbWwtOBgUOyNCgIvV71/xscudDR+KKwIv2BbfI5XohNQ/Cu3h
------END RSA PRIVATE KEY-----